Small-X Quarks at HERA Predict the Ultra High Energy Neutrino-Nucleon Cross Section
George M. Frichter, Douglas W. McKay, John P. Ralston
Abstract
New structure function data at small Bjorken x from HERA are used along with next-to-leading order QCD evolution to predict a cross section for charged-current interactions of ultrahigh energy neutrinos with nucleons. This new result is over twice the size of previous estimates and has important implications for cosmic ray experiments now underway as well as for KM3 arrays (cubic kilometer-scale neutrino telescopes) now in the planning stages.
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